Hi, This is an very old issue two years ago. The solution has already merged in our AT long time ago. If you still have a DNS issue, please check: ⋅ AT+RESTORE to initialize the module first, to see if it solves the problem. ⋅ To check if the router is 5G only. ESP8266 can only...

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Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. We are the manufacturer of ESP8266EX.